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_weakref.py
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268 lines (204 loc) · 8.57 KB
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# Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# The Universal Permissive License (UPL), Version 1.0
#
# Subject to the condition set forth below, permission is hereby granted to any
# person obtaining a copy of this software, associated documentation and/or
# data (collectively the "Software"), free of charge and under any and all
# copyright rights in the Software, and any and all patent rights owned or
# freely licensable by each licensor hereunder covering either (i) the
# unmodified Software as contributed to or provided by such licensor, or (ii)
# the Larger Works (as defined below), to deal in both
#
# (a) the Software, and
#
# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
# one is included with the Software each a "Larger Work" to which the Software
# is contributed by such licensors),
#
# without restriction, including without limitation the rights to copy, create
# derivative works of, display, perform, and distribute the Software and make,
# use, sell, offer for sale, import, export, have made, and have sold the
# Software and the Larger Work(s), and to sublicense the foregoing rights on
# either these or other terms.
#
# This license is subject to the following condition:
#
# The above copyright notice and either this complete permission notice or at a
# minimum a reference to the UPL must be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
class CallableProxyType(object):
pass
# weak refs are used to allow circular data structures to be collected.
# Java's GC has no problem with these, so we can make this a simple proxy.
class ProxyType(object):
def __init__(self, other):
object.__setattr__(self, "value", other)
def __getattr__(self, key):
return getattr(object.__getattribute__(self, "value"), key)
def __setattr__(self, key, value):
setattr(object.__getattribute__(self, "value"), key, value)
def __delattr__(self, key):
return delattr(object.__getattribute__(self, "value"), key)
def __getitem__(self, key):
return object.__getattribute__(self, "value")[key]
def __setitem__(self, key, value):
object.__getattribute__(self, "value")[key] = value
def __delitem__(self, key):
del object.__getattribute__(self, "value")[key]
def __repr__(self):
return f"<weakproxy at {id(self)} to {type(self).__name__} at {id(object.__getattribute__(self, 'value'))}>"
def __str__(self):
return str(object.__getattribute__(self, "value"))
def __bytes__(self):
return object.__getattribute__(self, "value").__bytes__()
def __lt__(self, other):
return object.__getattribute__(self, "value") < other
def __le__(self, other):
return object.__getattribute__(self, "value") <= other
def __eq__(self, other):
return object.__getattribute__(self, "value") == other
def __ne__(self, other):
return object.__getattribute__(self, "value") != other
def __gt__(self, other):
return object.__getattribute__(self, "value") > other
def __ge__(self, other):
return object.__getattribute__(self, "value") >= other
def __hash__(self):
return hash(object.__getattribute__(self, "value"))
def __bool__(self):
return bool(object.__getattribute__(self, "value"))
def __call__(self, *args):
return object.__getattribute__(self, "value")(*args)
def __len__(self):
return len(object.__getattribute__(self, "value"))
def __iter__(self):
return iter(object.__getattribute__(self, "value"))
def __next__(self):
return next(object.__getattribute__(self, "value"))
def __reversed__(self):
return object.__getattribute__(self, "value").__reversed__()
def __contains__(self, obj):
return obj in object.__getattribute__(self, "value")
def __add__(self, other):
return object.__getattribute__(self, "value") + other
def __sub__(self, other):
return object.__getattribute__(self, "value") - other
def __mul__(self, other):
return object.__getattribute__(self, "value") * other
def __matmul__(self, other):
return object.__getattribute__(self, "value") @ other
def __truediv__(self, other):
return object.__getattribute__(self, "value") / other
def __floordiv__(self, other):
return object.__getattribute__(self, "value") // other
def __mod__(self, other):
return object.__getattribute__(self, "value") % other
def __divmod__(self, other):
return divmod(object.__getattribute__(self, "value"), other)
def __pow__(self, exp, mod=None):
return pow(object.__getattribute__(self, "value"), exp, mod)
def __lshift__(self, other):
return object.__getattribute__(self, "value") << other
def __rshift__(self, other):
return object.__getattribute__(self, "value") >> other
def __and__(self, other):
return object.__getattribute__(self, "value") & other
def __xor__(self, other):
return object.__getattribute__(self, "value") ^ other
def __or__(self, other):
return object.__getattribute__(self, "value") | other
def __iadd__(self, other):
value = object.__getattribute__(self, "value")
value += other
return value
def __isub__(self, other):
value = object.__getattribute__(self, "value")
value -= other
return value
def __imul__(self, other):
value = object.__getattribute__(self, "value")
value *= other
return value
def __imatmul__(self, other):
value = object.__getattribute__(self, "value")
value @= other
return value
def __itruediv__(self, other):
value = object.__getattribute__(self, "value")
value /= other
return value
def __ifloordiv__(self, other):
value = object.__getattribute__(self, "value")
value //= other
return value
def __imod__(self, other):
value = object.__getattribute__(self, "value")
value %= other
return value
def __ipow__(self, exp):
value = object.__getattribute__(self, "value")
value **= exp
return value
def __ilshift__(self, other):
value = object.__getattribute__(self, "value")
value <<= other
return value
def __irshift__(self, other):
value = object.__getattribute__(self, "value")
value >>= other
return value
def __iand__(self, other):
value = object.__getattribute__(self, "value")
value &= other
return value
def __ixor__(self, other):
value = object.__getattribute__(self, "value")
value ^= other
return value
def __ior__(self, other):
value = object.__getattribute__(self, "value")
value |= other
return value
def __neg__(self):
return -object.__getattribute__(self, "value")
def __pos__(self):
return +object.__getattribute__(self, "value")
def __abs__(self):
return abs(object.__getattribute__(self, "value"))
def __invert__(self):
return ~object.__getattribute__(self, "value")
def __int__(self):
return int(object.__getattribute__(self, "value"))
def __float__(self):
return float(object.__getattribute__(self, "value"))
def __round__(self):
return round(object.__getattribute__(self, "value"))
def __index__(self):
v = object.__getattribute__(self, "value")
if not hasattr(v, "__index__"):
raise TypeError("'%s' object cannot be interpreted as an integer" % type(v))
result = v.__index__()
result_type = type(result)
if not isinstance(result, int):
raise TypeError("__index__ returned non-int (type %s)" % result_type)
return result
ref = ReferenceType
proxy = ProxyType
# getweakrefcount, -> truffle
# getweakrefs, -> truffle
# ref, -> link in py
# proxy, -> link in py
# CallableProxyType,
# ProxyType,
# ReferenceType, -> truffle
# _remove_dead_weakref -> truffle